Analysis

  • max time kernel
    150s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 21:23

General

  • Target

    8cca34499207c9b0f3d710c4c0c5bd0c6a934003cd18754727274f2629ed62dc.exe

  • Size

    4.1MB

  • MD5

    25de89bbcf1b6b2399eed745d966e8f0

  • SHA1

    9593b6a78f2769b83cc949afd0482b4b29f0d9e7

  • SHA256

    8cca34499207c9b0f3d710c4c0c5bd0c6a934003cd18754727274f2629ed62dc

  • SHA512

    011c1785b918ef8f8091da67a8d37708df8103aa6da188f5a8c6b7cea3400e2c8012c3b2a7ec77adc1ab19aeb0c81554243fc424eabe1e815c327a0bf4147120

  • SSDEEP

    98304:wc7aFVXn+Lid2bryXaMbaClZg093y0sFFfdliBdP4:wX++d2b0aMbplZO0sFfS4

Malware Config

Signatures

  • Glupteba

    Glupteba is a modular loader written in Golang with various components.

  • Glupteba payload 19 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Manipulates WinMonFS driver. 1 IoCs

    Roottkits write to WinMonFS to hide directories/files from being detected.

  • Drops file in System32 directory 7 IoCs
  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Windows directory 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

    Using powershell.exe command.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\8cca34499207c9b0f3d710c4c0c5bd0c6a934003cd18754727274f2629ed62dc.exe
    "C:\Users\Admin\AppData\Local\Temp\8cca34499207c9b0f3d710c4c0c5bd0c6a934003cd18754727274f2629ed62dc.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4548
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1632
    • C:\Users\Admin\AppData\Local\Temp\8cca34499207c9b0f3d710c4c0c5bd0c6a934003cd18754727274f2629ed62dc.exe
      "C:\Users\Admin\AppData\Local\Temp\8cca34499207c9b0f3d710c4c0c5bd0c6a934003cd18754727274f2629ed62dc.exe"
      2⤵
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3640
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2704
      • C:\Windows\system32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3512
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          PID:4480
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4944
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2788
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3156
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Drops file in System32 directory
          • Command and Scripting Interpreter: PowerShell
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1232
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Creates scheduled task(s)
          PID:4764
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:636
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:880
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:736
          • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:3924
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
            4⤵
            • Creates scheduled task(s)
            PID:1640

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_n1bk2rnn.2mm.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe

      Filesize

      281KB

      MD5

      d98e33b66343e7c96158444127a117f6

      SHA1

      bb716c5509a2bf345c6c1152f6e3e1452d39d50d

      SHA256

      5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

      SHA512

      705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      12135380f6ff6b43f3469629e800e8c8

      SHA1

      578ca38018081ea7a53a46ef3fa9a0a718a7545e

      SHA256

      e4149b689f0a88a5a2d304af0f99d8eed0a13dbac27c6aef40fbaa65b0485f2f

      SHA512

      2e8816b824a250e9a30ca12ba06e77ae900b865fa6789d090c1e9753daa983ef32835f09cc7aea555c87decb2c311620f2d27410090ddaf6e1f28292d346cf1f

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      955e36f58e0edc7369a94d0730ac9cc9

      SHA1

      e3b8e8845f9946d71a853f2cf517a0d28ad550db

      SHA256

      26bbc17013e770eb10bb76a131dad405ec48b69bd57d5e3c82ded7646045f7ab

      SHA512

      2dd1be557a288463e975d701d7e303d75e9f03cc384d5360757dbc6a6520eabf9fade07c6f3f550cfd02eac96896ee3150cb678e6f71372d0cb9724da0c84ad0

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      a348b5e37851df748eca9624771597c3

      SHA1

      0ada668ecf6261cfaa97f9e5cf129a791d4be945

      SHA256

      f307b1666587988e0dfb412d23103ea24acc38235c0fb97526da6632dd87df74

      SHA512

      6f67e9e02915c87978551d81f536ce22f4af3c6ab6edc8e8cc8c2d08d47501aba807dad01f8ba15d36ead236237fdd1db7512e4dd56e35cb8f903731587b831c

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      e53334d2f2dac19467fc00f7bae6b092

      SHA1

      e943929cec970f0e7c88bfc3e6160646b816b550

      SHA256

      80827b5f0e565e309850f215cb9f121ed8866523d10cd5555fa2bb0ce97a265a

      SHA512

      3b58863321b6c8d21228c5febce9b3fbea34a4304b78d40b0d6b0f33b24a2d0dcd557aeaffb52f18db272ab02545b57333b4cc53d445c4b1fbf6413eb6fee4f2

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      6f21b43e625d8fac361b5fdc8fdd9a7a

      SHA1

      4b648ba65db906b94cc2b23db45fd80e9b283cfc

      SHA256

      2961d9a7e8d3804c613b76b9b8b7b911021b965f10c9cfa6d684f83ca4b4b183

      SHA512

      3a29e9b5c14c4f4b2d8148ac00df093fb290d69fcddf779a2517db6059ba88df6821dc8afb39643218c3329517a4fc6c29f37217df723b9b2f6752720d298a8b

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      25de89bbcf1b6b2399eed745d966e8f0

      SHA1

      9593b6a78f2769b83cc949afd0482b4b29f0d9e7

      SHA256

      8cca34499207c9b0f3d710c4c0c5bd0c6a934003cd18754727274f2629ed62dc

      SHA512

      011c1785b918ef8f8091da67a8d37708df8103aa6da188f5a8c6b7cea3400e2c8012c3b2a7ec77adc1ab19aeb0c81554243fc424eabe1e815c327a0bf4147120

    • memory/736-196-0x0000000070CC0000-0x0000000070D0C000-memory.dmp

      Filesize

      304KB

    • memory/736-197-0x0000000071450000-0x00000000717A4000-memory.dmp

      Filesize

      3.3MB

    • memory/736-183-0x0000000005AD0000-0x0000000005E24000-memory.dmp

      Filesize

      3.3MB

    • memory/880-180-0x0000000007A40000-0x0000000007A51000-memory.dmp

      Filesize

      68KB

    • memory/880-181-0x0000000005DF0000-0x0000000005E04000-memory.dmp

      Filesize

      80KB

    • memory/880-179-0x0000000007720000-0x00000000077C3000-memory.dmp

      Filesize

      652KB

    • memory/880-169-0x00000000710A0000-0x00000000713F4000-memory.dmp

      Filesize

      3.3MB

    • memory/880-168-0x0000000070CC0000-0x0000000070D0C000-memory.dmp

      Filesize

      304KB

    • memory/880-167-0x0000000006590000-0x00000000065DC000-memory.dmp

      Filesize

      304KB

    • memory/880-165-0x0000000005EB0000-0x0000000006204000-memory.dmp

      Filesize

      3.3MB

    • memory/1232-144-0x0000000070DA0000-0x0000000070DEC000-memory.dmp

      Filesize

      304KB

    • memory/1232-145-0x0000000071520000-0x0000000071874000-memory.dmp

      Filesize

      3.3MB

    • memory/1632-4-0x0000000074F0E000-0x0000000074F0F000-memory.dmp

      Filesize

      4KB

    • memory/1632-22-0x0000000005BB0000-0x0000000005BFC000-memory.dmp

      Filesize

      304KB

    • memory/1632-42-0x0000000074F00000-0x00000000756B0000-memory.dmp

      Filesize

      7.7MB

    • memory/1632-41-0x0000000007100000-0x00000000071A3000-memory.dmp

      Filesize

      652KB

    • memory/1632-43-0x00000000071F0000-0x00000000071FA000-memory.dmp

      Filesize

      40KB

    • memory/1632-44-0x0000000007300000-0x0000000007396000-memory.dmp

      Filesize

      600KB

    • memory/1632-45-0x0000000007200000-0x0000000007211000-memory.dmp

      Filesize

      68KB

    • memory/1632-46-0x0000000007240000-0x000000000724E000-memory.dmp

      Filesize

      56KB

    • memory/1632-47-0x0000000007260000-0x0000000007274000-memory.dmp

      Filesize

      80KB

    • memory/1632-48-0x00000000072A0000-0x00000000072BA000-memory.dmp

      Filesize

      104KB

    • memory/1632-49-0x0000000007290000-0x0000000007298000-memory.dmp

      Filesize

      32KB

    • memory/1632-52-0x0000000074F00000-0x00000000756B0000-memory.dmp

      Filesize

      7.7MB

    • memory/1632-30-0x0000000071520000-0x0000000071874000-memory.dmp

      Filesize

      3.3MB

    • memory/1632-5-0x0000000000A30000-0x0000000000A66000-memory.dmp

      Filesize

      216KB

    • memory/1632-6-0x0000000074F00000-0x00000000756B0000-memory.dmp

      Filesize

      7.7MB

    • memory/1632-23-0x0000000006080000-0x00000000060C4000-memory.dmp

      Filesize

      272KB

    • memory/1632-24-0x0000000006E50000-0x0000000006EC6000-memory.dmp

      Filesize

      472KB

    • memory/1632-25-0x0000000007550000-0x0000000007BCA000-memory.dmp

      Filesize

      6.5MB

    • memory/1632-21-0x0000000005B20000-0x0000000005B3E000-memory.dmp

      Filesize

      120KB

    • memory/1632-16-0x0000000005750000-0x0000000005AA4000-memory.dmp

      Filesize

      3.3MB

    • memory/1632-26-0x0000000006EF0000-0x0000000006F0A000-memory.dmp

      Filesize

      104KB

    • memory/1632-27-0x00000000070A0000-0x00000000070D2000-memory.dmp

      Filesize

      200KB

    • memory/1632-7-0x0000000005120000-0x0000000005748000-memory.dmp

      Filesize

      6.2MB

    • memory/1632-28-0x0000000074F00000-0x00000000756B0000-memory.dmp

      Filesize

      7.7MB

    • memory/1632-9-0x0000000004C60000-0x0000000004CC6000-memory.dmp

      Filesize

      408KB

    • memory/1632-29-0x0000000070DA0000-0x0000000070DEC000-memory.dmp

      Filesize

      304KB

    • memory/1632-40-0x00000000070E0000-0x00000000070FE000-memory.dmp

      Filesize

      120KB

    • memory/1632-8-0x0000000004A60000-0x0000000004A82000-memory.dmp

      Filesize

      136KB

    • memory/1632-10-0x0000000004CD0000-0x0000000004D36000-memory.dmp

      Filesize

      408KB

    • memory/2704-77-0x0000000007750000-0x0000000007764000-memory.dmp

      Filesize

      80KB

    • memory/2704-63-0x0000000005D10000-0x0000000006064000-memory.dmp

      Filesize

      3.3MB

    • memory/2704-65-0x0000000070F20000-0x0000000071274000-memory.dmp

      Filesize

      3.3MB

    • memory/2704-64-0x0000000070DA0000-0x0000000070DEC000-memory.dmp

      Filesize

      304KB

    • memory/2704-75-0x00000000073E0000-0x0000000007483000-memory.dmp

      Filesize

      652KB

    • memory/2704-76-0x0000000007700000-0x0000000007711000-memory.dmp

      Filesize

      68KB

    • memory/2788-116-0x0000000071520000-0x0000000071874000-memory.dmp

      Filesize

      3.3MB

    • memory/2788-115-0x0000000070DA0000-0x0000000070DEC000-memory.dmp

      Filesize

      304KB

    • memory/3156-233-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/3156-237-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/3156-229-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/3156-231-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/3156-221-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/3156-235-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/3156-227-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/3156-219-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/3156-225-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/3156-223-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/3156-208-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/3156-215-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/3156-217-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/3640-131-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/4548-92-0x0000000004560000-0x000000000495D000-memory.dmp

      Filesize

      4.0MB

    • memory/4548-2-0x0000000004960000-0x000000000524B000-memory.dmp

      Filesize

      8.9MB

    • memory/4548-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4548-195-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4548-1-0x0000000004560000-0x000000000495D000-memory.dmp

      Filesize

      4.0MB

    • memory/4548-91-0x0000000000400000-0x0000000002738000-memory.dmp

      Filesize

      35.2MB

    • memory/4548-126-0x0000000004960000-0x000000000524B000-memory.dmp

      Filesize

      8.9MB

    • memory/4944-93-0x0000000070DA0000-0x0000000070DEC000-memory.dmp

      Filesize

      304KB

    • memory/4944-94-0x0000000071520000-0x0000000071874000-memory.dmp

      Filesize

      3.3MB